[plt-scheme] Re: overriding fields

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Mon Apr 11 23:30:01 EDT 2005

At Mon, 11 Apr 2005 16:32:54 -0500, Corey Sweeney wrote:
> i just found this is the manual:
> * overriding: Some methods declared in a superclass can be replaced in
> the derived class. References to the overridden method in the
> superclass use the implementation in the derived class.
> is this example what the manual is refering to?


You can get the same effect as your commented-out code by using
`rename-super' (in v299, just `rename' in v20x):

 (define b-mixin
   (mixin (thing<%>) (thing<%>)
     (rename-super [super-the-call the-call])
     (define/public (call-this) (lambda () (super-the-call)))
     (super-new (stuff "inside"))))


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